The cosmic web as a research area focuses on the large-scale matter distribution in the Universe, characterized by a network of filaments, walls, nodes, and voids formed by gravitational amplification of primordial density fluctuations in dark matter and baryons. This field integrates cosmological simulations, large galaxy redshift surveys, weak gravitational lensing, and Lyα forest tomography to quantify the web’s topology, connectivity, and anisotropic collapse. Key objectives include constraining cosmological parameters, dark matter and dark energy models, galaxy formation and environmental effects, and testing structure-formation theories within the ΛCDM framework or its alternatives through statistical analysis of web morphology and dynamics.
Computer simulations carried out by astronomers from the University of Groningen in collaboration with researchers from Germany, France and Sweden show that most of the (dark) matter beyond the Local Group of galaxies (which ...
Astronomy
Jan 27, 2026
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Our universe is filled with galaxies, in all directions as far as our instruments can see. Some researchers estimate that there are as many as 2 trillion galaxies in the observable universe. At first glance, these galaxies ...
Astronomy
Dec 15, 2025
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A research team led by Professor Woong-bae Zee at Sejong University has uncovered compelling evidence that the distinctive warped shapes of many disk galaxies are closely tied to both their surrounding satellite systems and ...
Astronomy
Dec 10, 2025
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An international team led by the University of Oxford has identified one of the largest rotating structures ever reported: a "razor-thin" string of galaxies embedded in a giant spinning cosmic filament, 140 million light-years ...
Astronomy
Dec 3, 2025
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Now that we have tools to find vast numbers of voids in the universe, we can finally ask…well, if we crack 'em open, what do we find inside?
Astronomy
Nov 3, 2025
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A Rutgers-led team of scientists has uncovered evidence of how galaxies expand by tracing the invisible scaffolding of the universe created by a mysterious substance known as dark matter.
Astronomy
Sep 18, 2025
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If you think a galaxy is big, compare it to the size of the universe: it's just a tiny dot which, together with a huge number of other tiny dots, forms clusters that aggregate into superclusters, which in turn weave into ...
Astronomy
Sep 16, 2025
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The magnetic fields that formed in the very early stages of the universe may have been billions of times weaker than a small fridge magnet, with strengths comparable to magnetism generated by neurons in the human brain. Yet, ...
Astronomy
Sep 2, 2025
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By analyzing the data from the MeerKAT International Giga-Hertz Tiered Extragalactic Exploration (MIGHTEE-HI) survey, astronomers have discovered a new rotating galaxy filament. The newfound filament is about 5.5 million ...
Astronomers have discovered a huge filament of hot gas bridging four galaxy clusters. At 10 times as massive as our galaxy, the thread could contain some of the universe's 'missing' matter, addressing a decades-long mystery.
Astronomy
Jun 19, 2025
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